相关实验视频
Updated: Jun 8, 2025

07:45
Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
10.8K
概括
我们开发了一种新型的多输入多输出沃尔特拉多项式均衡器 (MVPE),用于概率化塑造极化分割多重化4096-QAM系统. 这种MVPE比传统方法显著提高了2.8dB的接收器灵敏度.
科学领域:
- 光学通信是指光学通信.
- 信号处理 信号处理
背景情况:
- 一致的光学传输系统面临非线性扭曲.
- 极化分裂复杂化 (PDM) 和4096-QAM等高阶调制增加了数据速率,但加剧了非线性.
- 现有的均衡器,如单输入单输出Volterra非线性均衡器 (SISO VNLEs),在缓解这些扭曲方面存在局限性.
研究的目的:
- 提出并实验证明一个多输入多输出的沃尔特拉多项式等分器 (MVPE).
- 在概率造型 (PS) PDM 4096-QAM系统中评估MVPE的性能.
- 将MVPE的有效性与传统的SISO VNLEs进行比较.
主要方法:
- 在X和Y两极分化的相位 (I) 和正方形 (Q) 组件同时均等的MVPE的实施.
- 一个PS-PDM-4096-QAM连贯光传输系统的实验设置.
- 使用规范化泛化相互信息 (NGMI) 和接收器灵敏度测量进行性能评估.
主要成果:
- MVPE有效地减轻了PS-PDM-4096-QAM系统中的非线性扭曲.
- NGMI 已达到 DVB-S2 低密度平价检查 (LDPC) 代码的门,其中 20% 的开销.
- 与SISO VNLEs相比,获得了大约2.8dB的接收器灵敏度改进.
- MVPE保持了与SISO VNLEs几乎相同的计算复杂性.
结论:
- 拟议的MVPE是一种高效的解决方案,用于减轻先进的连贯光学系统中的非线性扭曲.
- MVPE在接收器灵敏度方面提供了显著的性能增长,而无需大幅增加计算复杂性.
- 这项技术提高了使用PS-PDM-4096-QAM的高容量光学传输的可行性.
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